Difference between revisions of "Part:BBa K1413023"

Revision as of 22:05, 1 November 2014 (view source) Laurabibi (Talk | contribs) ← Older edit		Revision as of 22:09, 1 November 2014 (view source) Laurabibi (Talk | contribs) Newer edit →
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	===Usage and Biology===		===Usage and Biology===
−		+	Combinated with the part <a href="https://parts.igem.org/Part:BBa_K1413024">BBa_K1413024</a>, it could be used like PCb biosensor.
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Revision as of 22:09, 1 November 2014

Promoter-RBS-bphr2 mutated-Terminator

bphR2 gene, from Pseudomonas pseudoalcaligens KF707, allows the transcription of bphR1 which activates the genes of degradation of biphenyls. In our project, genes of degradation was replaced by RFP gene to detect the compound. This part is composed by constitutive promoter (BBa_J23114), RBS (BBa_B0034), bphr2 (BBa_K1413021) and terminator (BBa_B0015).

Mechanism explanation:In absence of PCBs, bphR2 (BBa_K1413021) is bound to bphR1 promoter which activate the transcription of RFP but in very low expression. In presence of PCBs, when compound diffuses into the media, it binds to bphr2 protein which undergoes a conformational change that permits to activate more stronger bphR1 promoter and increase the transcription of RFP.

Sequence and Features